Remove unnecessary i18next-http-backend

package.json

@@ -42,7 +42,6 @@
     "history": "5.3.0",
     "i18next": "22.4.9",
     "i18next-browser-languagedetector": "7.0.1",
-    "i18next-http-backend": "2.1.1",
     "immer": "9.0.19",
     "invariant": "^2.2.4",
     "lodash-es": "^4.17.21",

pnpm-lock.yaml

@@ -36,7 +36,6 @@ specifiers:
   history: 5.3.0
   i18next: 22.4.9
   i18next-browser-languagedetector: 7.0.1
-  i18next-http-backend: 2.1.1
   immer: 9.0.19
   invariant: ^2.2.4
   lodash-es: ^4.17.21
@@ -90,7 +89,6 @@ dependencies:
   history: 5.3.0
   i18next: 22.4.9
   i18next-browser-languagedetector: 7.0.1
-  i18next-http-backend: 2.1.1
   immer: 9.0.19
   invariant: 2.2.4
   lodash-es: 4.17.21
@@ -4090,14 +4088,6 @@ packages:
       yaml: 1.10.2
     dev: true
 
-  /cross-fetch/3.1.5:
-    resolution: {integrity: sha512-lvb1SBsI0Z7GDwmuid+mU3kWVBwTVUbe7S0H52yaaAdQOXq2YktTCZdlAcNKFzE6QtRz0snpw9bNiPeOIkkQvw==}
-    dependencies:
-      node-fetch: 2.6.7
-    transitivePeerDependencies:
-      - encoding
-    dev: false
-
   /cross-spawn/7.0.3:
     resolution: {integrity: sha512-iRDPJKUPVEND7dHPO8rkbOnPpyDygcDFtWjpeWNCgy8WP2rXcxXL8TskReQl6OrB2G7+UJrags1q15Fudc7G6w==}
     engines: {node: '>= 8'}
@@ -5102,14 +5092,6 @@ packages:
       '@babel/runtime': 7.20.13
     dev: false
 
-  /i18next-http-backend/2.1.1:
-    resolution: {integrity: sha512-jByfUCDVgQ8+/Wens7queQhYYvMcGTW/lR4IJJNEDDXnmqjLrwi8ubXKpmp76/JIWEZHffNdWqnxFJcTVGeaOw==}
-    dependencies:
-      cross-fetch: 3.1.5
-    transitivePeerDependencies:
-      - encoding
-    dev: false
-
   /i18next/22.4.9:
     resolution: {integrity: sha512-8gWMmUz460KJDQp/ob3MNUX84cVuDRY9PLFPnV8d+Qezz/6dkjxwOaH70xjrCNDO+JrUL25iXfAIN9wUkInNZw==}
     dependencies:
@@ -5633,18 +5615,6 @@ packages:
     resolution: {integrity: sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw==}
     dev: true
 
-  /node-fetch/2.6.7:
-    resolution: {integrity: sha512-ZjMPFEfVx5j+y2yF35Kzx5sF7kDzxuDj6ziH4FFbOp87zKDZNx8yExJIb05OGF4Nlt9IHFIMBkRl41VdvcNdbQ==}
-    engines: {node: 4.x || >=6.0.0}
-    peerDependencies:
-      encoding: ^0.1.0
-    peerDependenciesMeta:
-      encoding:
-        optional: true
-    dependencies:
-      whatwg-url: 5.0.0
-    dev: false
-
   /node-releases/2.0.6:
     resolution: {integrity: sha512-PiVXnNuFm5+iYkLBNeq5211hvO38y63T0i2KKh2KnUs3RpzJ+JtODFjkD8yjLwnDkTYF1eKXheUwdssR+NRZdg==}
     dev: true
@@ -6534,10 +6504,6 @@ packages:
       is-number: 7.0.0
     dev: true
 
-  /tr46/0.0.3:
-    resolution: {integrity: sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==}
-    dev: false
-
   /tr46/1.0.1:
     resolution: {integrity: sha512-dTpowEjclQ7Kgx5SdBkqRzVhERQXov8/l9Ft9dVM9fmg0W0KQSVaXX9T4i6twCPNtYiZM53lpSSUAwJbFPOHxA==}
     dependencies:
@@ -6753,21 +6719,10 @@ packages:
       loose-envify: 1.4.0
     dev: false
 
-  /webidl-conversions/3.0.1:
-    resolution: {integrity: sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==}
-    dev: false
-
   /webidl-conversions/4.0.2:
     resolution: {integrity: sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg==}
     dev: true
 
-  /whatwg-url/5.0.0:
-    resolution: {integrity: sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==}
-    dependencies:
-      tr46: 0.0.3
-      webidl-conversions: 3.0.1
-    dev: false
-
   /whatwg-url/7.1.0:
     resolution: {integrity: sha512-WUu7Rg1DroM7oQvGWfOiAK21n74Gg+T4elXEQYkOhtyLeWiJFoOGLXPKI/9gzIie9CtwVLm8wtw6YJdKyxSjeg==}
     dependencies:

src/misc/i18n.ts

@@ -1,44 +1,40 @@
+import type { ReadCallback } from 'i18next';
 import i18next from 'i18next';
 import LanguageDetector from 'i18next-browser-languagedetector';
-import HttpBackend from 'i18next-http-backend';
 import { initReactI18next } from 'react-i18next';
 
-type BackendRequestCallback = (err: null, result: { status: number; data: any }) => void;
+const LngBackend = {
+  type: 'backend' as const,
+  read: (
+    lng: string,
+    _namespace: string,
+    callback: ReadCallback,
+  ) => {
+    let p: PromiseLike<{ data: any }>;
+    switch (lng) {
+      case 'zh':
+      case 'zh-CN':
+        p = import('src/i18n/zh');
+        break;
+      case 'en':
+      default:
+        p = import('src/i18n/en');
+        break;
+    }
+    if (p) {
+      p.then(d => callback(null, d.data), err => callback(err, null));
+    } else {
+      callback(new Error(`unable to load translation file for language ${lng}`), null)
+    }
+  }
+}
 
 i18next
-  .use(HttpBackend)
   .use(initReactI18next)
   .use(LanguageDetector)
+  .use(LngBackend)
   .init({
     debug: process.env.NODE_ENV === 'development',
-    backend: {
-      loadPath: '/__{{lng}}/{{ns}}.json',
-      request: function(
-        _options: any,
-        url: string,
-        _payload: any,
-        callback: BackendRequestCallback
-      ) {
-        let p: PromiseLike<{ data: any }>;
-
-        switch (url) {
-          case '/__zh/translation.json':
-          case '/__zh-CN/translation.json':
-            p = import('src/i18n/zh');
-            break;
-          case '/__en/translation.json':
-          default:
-            p = import('src/i18n/en');
-            break;
-        }
-
-        if (p) {
-          p.then((mod) => {
-            callback(null, { status: 200, data: mod.data });
-          });
-        }
-      },
-    },
     fallbackLng: 'en',
     interpolation: {
       escapeValue: false,